use rational numbers for alteration field of Pitch.

[lilypond.git] / lily / include / lily-guile.hh

diff --git a/lily/include/lily-guile.hh b/lily/include/lily-guile.hh
index 621849edc6a01344922a1f270e858581d7419df2..c2cfb8ebfca2f9961bee9bdc0a4f8d1aaeb415a0 100644 (file)
--- a/lily/include/lily-guile.hh
+++ b/lily/include/lily-guile.hh
@@ -45,6 +45,8 @@ string gulp_file_to_string (string fn, bool must_exist, int size);
 
 string ly_scm2string (SCM s);
 string ly_symbol2string (SCM);
+Rational ly_scm2rational (SCM);
+SCM ly_rational2scm (Rational);
 SCM ly_offset2scm (Offset);
 Offset ly_scm2offset (SCM);
 SCM ly_chain_assoc (SCM key, SCM achain);